1-CARBONYL-1-ETA-5-CYCLOPENTADIENYL-2,2,2-TRIPHENYL-1-TRIPHENYLPHOSPHINE-MU-CARBOXYLATO-1-KAPPA-C-2-KAPPA-O-2-KAPPA-O'-IRONTIN

[FeSn(C5H5)(C6H5)3(CO)(CO2){P(C6H5)3}], M(r) = 805.27, orthorhombic, Pbca, a = 17.972 (2), b = 20.254 (4), c = 20.148 (3) angstrom, V = 7334.0 angstrom 3, Z = 8, D(x) = 1.46 g cm-3, Mo K-alpha (lambda = 0.71073 angstrom), mu = 11.60 cm-1, F(000) = 3264, T = 296 K, 5282 unique reflections, R = 0.038, wR = 0.040 for 3843 observed reflections with I > 3-sigma-(I). The coordination environment about the iron consists of a triphenylphosphine, a cyclopentadienyl ring, a carbonyl and a C-bound carboxylate. A triphenyltin unit is bound to the iron center through the O atoms of the carboxylate group giving a bimetallic complex. The Sn-O bond lengths differ by only 0.219 angstrom [2.123 (4) and 2.342 (4) angstrom] which is less than that observed for monomeric triaryltin organocarboxylates (0.45-0.81 angstrom). The geometry about the Sn atom is best described as distorted trigonal bipyramidal.